CN208966762U - A kind of cylinder barrel of composite material hydraulic cylinder - Google Patents
A kind of cylinder barrel of composite material hydraulic cylinder Download PDFInfo
- Publication number
- CN208966762U CN208966762U CN201821769545.9U CN201821769545U CN208966762U CN 208966762 U CN208966762 U CN 208966762U CN 201821769545 U CN201821769545 U CN 201821769545U CN 208966762 U CN208966762 U CN 208966762U
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- steel liner
- composite layer
- end caps
- pin
- composite material
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Abstract
A kind of cylinder barrel of composite material hydraulic cylinder, it is related to the structure of hydraulic cylinder, including steel liner, composite layer, two end caps, two end caps are respectively welded at the both ends of steel liner, the internal diameter of two end caps is equal with the internal diameter of steel liner, the outer diameter of two end caps is all larger than the outer diameter of steel liner, and two end caps and steel liner form dumbbell shape, and composite layer is wrapped in the steel liner of dumbbell shape and the outside of two end caps；It is connected respectively by pin between the composite layer and each end cap.The utility model connects composite layer and end cap by pin, avoids between cylinder barrel end and composite layer by being glued the quality problems generated.The connection structure of composite material Barrel of Hydraulic Cylinders have small volume, manufacture it is relatively easy, it is easy to accomplish the characteristics of, to Barrel of Hydraulic Cylinders it is light-weighted design a kind of connection scheme for steel component and composite layer is provided.
Description
Technical field
The utility model relates to industrial machinery and engineering machinery field more particularly to the structures of hydraulic cylinder.
Background technique
Light-weight design is a developing direction of engineering machinery and field of industrial machinery.Hydraulic cylinder as engineering machinery and
A most widely used critical component in industrial machinery is even more essential component to large-scale engineering machinery etc..Hydraulic cylinder it is light
Quantization is of great significance for engineer machinery operation precision and energy loss reduction.The most fundamental advantage of composite material hydraulic cylinder
It is the significant weight for mitigating components and raising bearing capacity.With regard to current technology level, the piece surface of simple composite material
Quality and dimensional accuracy are unable to satisfy the requirement of key part such as cylinder barrel and piston rod in hydraulic cylinder, can only use thus
The method of steel liner outer layer covers composite material realizes light-weighted purpose.And most scheme is steel liner and multiple
The connection of condensation material is fixed by gluing knot, its internal pressure is non-constant when due to hydraulic cylinder works, often in change
In change, will cause has the tendency that removing between the two.Such scheme causes greatly to interfere to the reliability operation of hydraulic cylinder, can
Reduce service life.Cylinder barrel end also needs to be connected with cylinder cap etc. simultaneously, the connection between composite layer and steel liner
Structure rarely has introduction, therefore needs to provide the connection scheme of multiplicity, and Popularization And Development and engineer application to composite material have very big benefit
Place.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of cylinder of composite material hydraulic cylinder
Cylinder improves the reliability of composite material Barrel of Hydraulic Cylinders.
Purpose of the utility model is realized as follows: a kind of cylinder barrel of composite material hydraulic cylinder, including it is steel liner, multiple
Condensation material layer, two end caps, two end caps are respectively welded at the both ends of steel liner, internal diameter and the steel liner of two end caps
Internal diameter is equal, and the outer diameter of two end caps is all larger than the outer diameter of steel liner, and two end caps and steel liner form dumbbell shape, compound
Material layer is wrapped in the steel liner of dumbbell shape and the outside of two end caps；Divide between the composite layer and each end cap
It is not connected by pin.
The utility model connects composite layer and end cap by pin, avoids leading between cylinder barrel end and composite layer
Cross the quality problems be glued and generated.The connection structure of composite material Barrel of Hydraulic Cylinders have small volume, manufacture it is relatively easy, easily
In realize the characteristics of, to Barrel of Hydraulic Cylinders it is light-weighted design a kind of connection side for steel component and composite layer is provided
Case.
Groove is arranged in the utility model on the end cap, and the elastic ring of setting open-type, sets on elastic ring in groove
Set pin hole, pin be arranged in composite layer and the pin hole of elastic ring in.Pin is fixed on above elastic ring, it can be square
Just the processing and manufacturing of cylinder barrel.
The axial direction of the pin of the utility model is axially vertical with steel liner.Pin is arranged vertically, by pin by end
Lid is connect with composite layer, and pin a part is wrapped in composite layer, and when cylinder barrel is by pulling force, pin provides one
Relatively large axial force mutually separates with composite layer and seamless steel pipe when avoiding end cap excessive because of stress, causes cylinder structure
The failures such as destruction, leakage.
Ibid, the axial direction of the pin of the utility model and steel liner are axially formed angle.
The steel liner of the utility model uses solid drawn tube, and composite layer is polymer matrix composites, uses
Glass fibre, aramid fiber or carbon fiber are made.
Detailed description of the invention
Fig. 1 is the first structural schematic diagram of the utility model.
Fig. 2 is second of structural schematic diagram of the utility model.
Fig. 3 is the third structural schematic diagram of the utility model.
Fig. 4 is the structural schematic diagram that elastic ring is connected with pin in Fig. 3.
Fig. 5 is A-A direction view in Fig. 4.
Fig. 6 is the 4th kind of structural schematic diagram of the utility model.
Fig. 7 is the structural schematic diagram that elastic ring is connected with pin in Fig. 6.
Fig. 8 is B-B direction view in Fig. 7.
Specific embodiment
Embodiment 1
As shown in Figure 1, being the cylinder barrel of the first composite material hydraulic cylinder, including steel liner 4, composite layer 3, two
End cap 1, steel liner 4 use solid drawn tube, and composite layer 3 is polymer matrix composites, using glass fibre, aramid fiber
Fiber or carbon fiber are made.Two end caps 1 are respectively welded at the both ends of steel liner 4, in the internal diameter and steel of two end caps 1
The internal diameter of lining 4 is equal, and the outer diameter of two end caps 1 is all larger than the outer diameter of steel liner 4, and two end caps 1 and steel liner 4 form mute
Bell type, composite layer package 3 is in the outside of the steel liner 4 of dumbbell shape and two end caps 1.
It is connected respectively by pin 2 between composite layer 3 and each end cap 1, the axial direction and steel liner 4 of pin 2
It is axially vertical.
Embodiment 2
As shown in Fig. 2, being the cylinder barrel of second of composite material hydraulic cylinder, the axial direction of pin 2 and the axial shape of steel liner 4
At angle, remaining structure is the same as embodiment 1.
Embodiment 3
As shown in Fig. 3,4,5, it is the cylinder barrel of the third composite material hydraulic cylinder, groove 6 is set on end cap 1, in groove 6
The elastic ring 5 of open-type is set, pin hole is set on elastic ring 5, pin 2 is arranged in composite layer and elastic ring 5
In pin hole, the axial direction of pin 2 is axially vertical with steel liner 4.Remaining structure is the same as embodiment 1.
Embodiment 4
It is the cylinder barrel of the 4th kind of composite material hydraulic cylinder, the axial direction of pin 2 and the axis of steel liner 4 as shown in Fig. 6,7,8
To angle is formed, remaining structure is the same as embodiment 3.
Claims (5)
1. a kind of cylinder barrel of composite material hydraulic cylinder, it is characterised in that: including steel liner, composite layer, two end caps, two
A end cap is respectively welded at the both ends of steel liner, and the internal diameter of two end caps is equal with the internal diameter of steel liner, two end caps
Outer diameter is all larger than the outer diameter of steel liner, and two end caps and steel liner form dumbbell shape, and composite layer is wrapped in dumbbell shape
Steel liner and two end caps outside；It is connected respectively by pin between the composite layer and each end cap.
2. the cylinder barrel of composite material hydraulic cylinder according to claim 1, it is characterised in that: groove is set on the end cap,
The elastic ring of setting open-type in groove, is arranged pin hole, pin is arranged in composite layer and elastic ring on elastic ring
Pin hole in.
3. the cylinder barrel of composite material hydraulic cylinder according to claim 1 or claim 2, it is characterised in that: the axial direction and steel of the pin
Matter liner it is axially vertical.
4. the cylinder barrel of composite material hydraulic cylinder according to claim 1 or claim 2, it is characterised in that: the axial direction and steel of the pin
Matter liner is axially formed angle.
5. the cylinder barrel of composite material hydraulic cylinder according to claim 1, it is characterised in that: the steel liner using cold-drawn without
Steel pipe is stitched, composite layer is polymer matrix composites, is made of glass fibre, aramid fiber or carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821769545.9U CN208966762U (en) | 2018-10-30 | 2018-10-30 | A kind of cylinder barrel of composite material hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821769545.9U CN208966762U (en) | 2018-10-30 | 2018-10-30 | A kind of cylinder barrel of composite material hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966762U true CN208966762U (en) | 2019-06-11 |
Family
ID=66764654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821769545.9U Active CN208966762U (en) | 2018-10-30 | 2018-10-30 | A kind of cylinder barrel of composite material hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966762U (en) |
-
2018
- 2018-10-30 CN CN201821769545.9U patent/CN208966762U/en active Active
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